private unsafe static IPAddress InternalParse(string ipString, bool tryParse)
{
if (ipString == null)
{
if (tryParse)
{
return null;
}
throw new ArgumentNullException("ipString");
}
else
{
if (ipString.IndexOf(':') != -1)
{
SocketException innerException;
if (Socket.OSSupportsIPv6)
{
byte[] array = new byte[16];
SocketAddress socketAddress = new SocketAddress(AddressFamily.InterNetworkV6, 28);
if (OSSOCK.WSAStringToAddress(ipString, AddressFamily.InterNetworkV6, IntPtr.Zero, socketAddress.m_Buffer, ref socketAddress.m_Size) == SocketError.Success)
{
for (int i = 0; i < 16; i++)
{
array[i] = socketAddress[i + 8];
}
long scopeid = (long)(((int)socketAddress[27] << 24) + ((int)socketAddress[26] << 16) + ((int)socketAddress[25] << 8) + (int)socketAddress[24]);
return new IPAddress(array, scopeid);
}
if (tryParse)
{
return null;
}
innerException = new SocketException();
}
else
{
int start = 0;
if (ipString[0] != '[')
{
ipString += ']';
}
else
{
start = 1;
}
int length = ipString.Length;
fixed (char* name = ipString)
{
if (IPv6AddressHelper.IsValidStrict(name, start, ref length) || length != ipString.Length)
{
ushort[] array2 = new ushort[8];
string text = null;
fixed (ushort* ptr = array2)
{
IPv6AddressHelper.Parse(ipString, ptr, 0, ref text);
}
IPAddress result;
if (text == null || text.Length == 0)
{
result = new IPAddress(array2, 0u);
}
else
{
text = text.Substring(1);
uint scopeid2;
if (!uint.TryParse(text, NumberStyles.None, null, out scopeid2))
{
goto IL_193;
}
result = new IPAddress(array2, scopeid2);
}
return result;
}
IL_193: ;
}
if (tryParse)
{
return null;
}
innerException = new SocketException(SocketError.InvalidArgument);
}
throw new FormatException("dns_bad_ip_address" + innerException);
}
Socket.InitializeSockets();
int length2 = ipString.Length;
long num;
fixed (char* name2 = ipString)
{
num = IPv4AddressHelper.ParseNonCanonical(name2, 0, ref length2, true);
}
if (num != -1L && length2 == ipString.Length)
{
num = ((num & 255L) << 24 | ((num & 65280L) << 8 | ((num & 16711680L) >> 8 | (num & 1095216660480) >> 24)));
return new IPAddress(num);
}
if (tryParse)
{
return null;
}
throw new FormatException("dns_bad_ip_address");
}
}
/// <summary>Converts an Internet address to its standard notation.</summary>
/// <returns>A string that contains the IP address in either IPv4 dotted-quad or in IPv6 colon-hexadecimal notation.</returns>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// </PermissionSet>
public unsafe override string ToString()
{
if (this.m_ToString == null)
{
if (this.m_Family == AddressFamily.InterNetworkV6)
{
int capacity = 256;
StringBuilder stringBuilder = new StringBuilder(capacity);
if (Socket.OSSupportsIPv6)
{
SocketAddress socketAddress = new SocketAddress(AddressFamily.InterNetworkV6, 28);
int num = 8;
for (int i = 0; i < 8; i++)
{
socketAddress[num++] = (byte)(this.m_Numbers[i] >> 8);
socketAddress[num++] = (byte)this.m_Numbers[i];
}
if (this.m_ScopeId > 0L)
{
socketAddress[24] = (byte)this.m_ScopeId;
socketAddress[25] = (byte)(this.m_ScopeId >> 8);
socketAddress[26] = (byte)(this.m_ScopeId >> 16);
socketAddress[27] = (byte)(this.m_ScopeId >> 24);
}
SocketError socketError = OSSOCK.WSAAddressToString(socketAddress.m_Buffer, socketAddress.m_Size, IntPtr.Zero, stringBuilder, ref capacity);
if (socketError != SocketError.Success)
{
throw new SocketException();
}
}
else
{
string value = string.Format(CultureInfo.InvariantCulture, "{0:x4}:{1:x4}:{2:x4}:{3:x4}:{4:x4}:{5:x4}:{6}.{7}.{8}.{9}", new object[]
{
this.m_Numbers[0],
this.m_Numbers[1],
this.m_Numbers[2],
this.m_Numbers[3],
this.m_Numbers[4],
this.m_Numbers[5],
this.m_Numbers[6] >> 8 & 255,
(int)(this.m_Numbers[6] & 255),
this.m_Numbers[7] >> 8 & 255,
(int)(this.m_Numbers[7] & 255)
});
stringBuilder.Append(value);
if (this.m_ScopeId != 0L)
{
stringBuilder.Append('%').Append((uint)this.m_ScopeId);
}
}
this.m_ToString = stringBuilder.ToString();
}
else
{
int num2 = 15;
char* ptr = stackalloc char[15];
int num3 = (int)(this.m_Address >> 24 & 255L);
do
{
ptr[(--num2)] = (char)(48 + num3 % 10);
num3 /= 10;
}
while (num3 > 0);
ptr[(--num2)] = '.';
num3 = (int)(this.m_Address >> 16 & 255L);
do
{
ptr[(--num2)] = (char)(48 + num3 % 10);
num3 /= 10;
}
while (num3 > 0);
ptr[(--num2)] = '.';
num3 = (int)(this.m_Address >> 8 & 255L);
do
{
ptr[(--num2)] = (char)(48 + num3 % 10);
num3 /= 10;
}
while (num3 > 0);
ptr[(--num2)] = '.';
num3 = (int)(this.m_Address & 255L);
do
{
ptr[(--num2)] = (char)(48 + num3 % 10);
num3 /= 10;
}
while (num3 > 0);
this.m_ToString = new string(ptr, num2, 15 - num2);
}
}
return this.m_ToString;
}
/// <summary>Creates an <see cref="T:System.Net.EndPoint" /> instance from a <see cref="T:System.Net.SocketAddress" /> instance.</summary>
/// <returns>A new <see cref="T:System.Net.EndPoint" /> instance that is initialized from the specified <see cref="T:System.Net.SocketAddress" /> instance.</returns>
/// <param name="socketAddress">The socket address that serves as the endpoint for a connection. </param>
/// <exception cref="T:System.NotImplementedException">Any attempt is made to access the method when the method is not overridden in a descendant class. </exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
/// </PermissionSet>
public virtual EndPoint Create(SocketAddress socketAddress)
{
throw new NotImplementedException();
}